Spark Plugs
#1
Honda-Tech Member
Thread Starter
Spark Plugs
I'm putting my D16Y8 (built) on 16PSI on a T25 for around 300WHP. I'm wondering if NGK Iridium 6 Heat step will be enough to not cause detonation.
#2
Honda-Tech Member
Re: Spark Plugs
I personally think the Iridiums are a waste of money on most cars that do not need them (ECU not compatible with non-resistor plugs). Also, I would go a step colder and get a set of 7s.
#3
Honda-Tech Member
Thread Starter
Re: Spark Plugs
because none of these models come in a 7.
V-Power ZFR5F-11 # 2262 .044
G-Power ZFR5FGP 7098 .044
Laser Platinum PZFR5F-11 * 4363 .044
Iridium IX ZFR5FIX-11 2477 .044
#4
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Re: Spark Plugs
I have NGK ZFR7F-11 in my car and plenty spare so they exsist. and work very well for me.
#6
Honda-Tech Member
Re: Spark Plugs
At the autoparts store you need to ask for the stock number not the par number
Stock# Part#
5913 ZFR7F
6855 ZFR7F-11 (-11 is just a preset gap, you have to change it anyways)
or
4644 BKR7E
all are copper plugs, cheaper and techically a better conductor. i dont even think they make iridium zfr7f plugs
Stock# Part#
5913 ZFR7F
6855 ZFR7F-11 (-11 is just a preset gap, you have to change it anyways)
or
4644 BKR7E
all are copper plugs, cheaper and techically a better conductor. i dont even think they make iridium zfr7f plugs
#7
Honda-Tech Member
Thread Starter
Re: Spark Plugs
At the autoparts store you need to ask for the stock number not the par number
Stock# Part#
5913 ZFR7F
6855 ZFR7F-11 (-11 is just a preset gap, you have to change it anyways)
or
4644 BKR7E
all are copper plugs, cheaper and techically a better conductor. i dont even think they make iridium zfr7f plugs
Stock# Part#
5913 ZFR7F
6855 ZFR7F-11 (-11 is just a preset gap, you have to change it anyways)
or
4644 BKR7E
all are copper plugs, cheaper and techically a better conductor. i dont even think they make iridium zfr7f plugs
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#8
Honda-Tech Member
Re: Spark Plugs
they are lower cost not cheap in quality. change them a bit more often and you will be fine. $10 every 5-10k miles wont break the bank
#9
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Re: Spark Plugs
The regular NGK V-power copper plugs work absolutely amazing. I've been using them for years in tons of imports and different engine setups. You may think just because they're cheap that the quality is not there but look at the ****ing brand name on the box. NGK does not make **** products.
#10
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Re: Spark Plugs
the regular ngk v-power copper plugs work absolutely amazing. I've been using them for years in tons of imports and different engine setups. You may think just because they're cheap that the quality is not there but look at the ****ing brand name on the box. Ngk does not make **** products.
x2!
Ngk 4554
#11
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#12
Honda-Tech Member
Thread Starter
Re: Spark Plugs
The regular NGK V-power copper plugs work absolutely amazing. I've been using them for years in tons of imports and different engine setups. You may think just because they're cheap that the quality is not there but look at the ****ing brand name on the box. NGK does not make **** products.
#13
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Re: Spark Plugs
No, I'm serious, use them. I guarantee you most of the guys running forced induction are using them. Anytime I tried to use the more expensive plugs I had worse results than using the V-power copper plugs that cost me 1.50.
#14
Honda-Tech Member
Thread Starter
Re: Spark Plugs
ok well i got a set of them already. Ill see how it goes. Although I feel a bit better since I was @ a local performance parts store today and they had a whole case of V-Power plugs there in different heats. And then they had some V-Power Racing plugs (which i've never seen before).
#15
Honda-Tech Member
Re: Spark Plugs
The use of Iridium in the plugs is not for increasing power. They last a lot longer because the Iridium electrodes don't erode as fast as they do on the copper plugs. That is why they are used in modern cars. The manufacturers have to guarantee that emissions will remain low for many miles. Copper plugs last about 15k miles. The replacement interval of Iridium plugs on newer Honda's is usually 105k miles. History has shown that the average person can't be trusted to maintain their car and in the past the majority of cars that failed smog tests failed simply because they weren't maintained properly (usually due to worn out spark plugs). Platinum and Iridium plugs actually require more voltage to fire and in some cases if these plugs are installed where coppers were originally specified the car will run poorly. I saw this countless times in the early 90's when Bosch originally came out with platinum replacement plugs.
#16
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Re: Spark Plugs
ok well i got a set of them already. Ill see how it goes. Although I feel a bit better since I was @ a local performance parts store today and they had a whole case of V-Power plugs there in different heats. And then they had some V-Power Racing plugs (which i've never seen before).
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